Table 2.

Equations for Centiloid depend on the reference region with FBB and FMM.

Reference region	FBB	FMM
WC	dcCLFBB = 151.4 × SUVRFBB − 142.2	dcCLFMM = 148.5 × SUVRFMM − 137.1
WC + B	dcCLFBB = 160.9 × SUVRFBB − 143.0	dcCLFMM = 161.7 × SUVRFMM − 139.7
CG	dcCLFBB = 123.1 × SUVRFBB − 139.2	dcCLFMM = 113.5 × SUVRFMM − 128.8
Pons	dcCLFBB = 211.1 × SUVRFBB − 144.8	dcCLFMM = 232.8 × SUVRFMM − 148.5

FBB ¹⁸F-florbetaben, FMM ¹⁸F-flutemetamol, SUVR standardized uptake value ratio, WC whole cerebellum, CG cerebellar gray matter, WC + B whole cerebellum + brainstem, dcCL Centiloid unit from direct comparison of the FBB-FMM CL method.